Extension-rail



Patented Oct. 4, 1921 IN V EN TOR.

I 770 NEYJ.

Va 1 I. v d N 9 0 Q o H\N In HNIH MU a MD huwuul HHMMHHHMN I 1 w K f o QM m N v MN 0Q ANN Q \ON ON zen of the United States,

UNITED. STATES PATENT o FIc THOMAS QU INN, or HUNTINGTON," WEST VIRGINIA. I,

' nx'rENsIon-Rmn Application filed JApril 12,

T 0 all whom it may concern.

Be itknown that I, T MASQUIN' citiresiding at Huntington, in the county of Cabell and State of est Virginia, have invented certain new and useful Improvements in Extension- Rails, of which the following is a specification.

This invention relates to an improved extension rail for mine tracks andhas as one of its principal objectsto provide a device of this character whereby the rails of a mine track may be readily lengthened or shortened at the working face of the mine.

The invention has as a further object to provide an extension rail having a bumper so that a mine car can not run off of the end of the track at the working face of the mine.

And the invention has as a still further object to provide an extension rail which may be readily employed in connection with the ordinary T-shaped track rail and which may also be used in connection with substantially any conventional type of tie.

Other and incidental objects will appear hereinafter.

In the drawings:

Figure 1 is a fragmentary side elevation showing my improved extension rail in position upon an ordinary mine track rail, i

Fig. 2 is a plan view similar to Fig. 1,

Fig. 8 is a fragmentary perspective view particularly showing the inner end portion of the extension rail, and

Fig. 4 is a transverse sectional view on the line H of Fig. 2, looking in the direction of the arrows.

As is well known, considerable difficulty is at present experienced in shortening and lengthening the track of a coal mine at the working face of the mine. Where a cutting machine is used, a portion of the track ad jacent the working face of the mine must be torn up so as to make room to unload the machine and after a out has been made, the track must be again relaid. As will be perceived, much valuable time is, therefore, lost in thus tearing up and relaying the track and, of course, considerable expense is also incurred. The present invention, therefore, seeks to overcome the difliculties mentioned as well as to provide an extension rail which, in addition to eliminating the necessity for tearing up the mine track, will also possess other advantages tending toward the complete efficiency of the rail.

. Specification of Letters remit. .Iaten'ted-Oct. 4, 1921.

i920. Serial no. 373,246. I

Referring now more particularly to the drawing, I have shown my improved extension rail in connection with mine track rail 10, this rail belng of the an ordinary usual T-shape in cross section and being spiked or otherwise secured to the track ties 11. Theseties have also been conventionally shown. 7 The rail of the present invention is formed to slidably fit freely over the. rail 10 and is constructed with a hollow tread 12 fitting around the tread of the raillO and provided with confronting side flanges 13 engaging opposite sides of the track rail web. At the lower edges of the flanges 13 of the extension rail are divergent base flanges 14 seating against the upper face of the base flange of the rail 1() The tread, side and base flanges of the rail are preferably formed as an integral structure and at its inner end the tread is, as particularly shown in Fig. 3, provided with beveled faces 15 sloping to the upper faceof the tread ofthe rail 10 so that the wheels of rolling stock will pass from one rail to the other without jolting. Fitted into the outer end of the extension'rail is one'end'of an upwardly directed bumper 16. -This bumper. may be formed from a section of ordinary T-rail properly bent and engaged through the side flanges of the extension rail and through the inner end of the similar function. Formed through the side flanges of the extension rail throughout the major portion of the length thereof, are spaced pairs of registering openings 19 which are arranged to be brought into register with the usual bolt openings through the forward end portion of the rail 10 and engaged through registering openings of the rails are bolts or other approved fastening devices 20 firmly securing the rails together, it being observed in this connection that the extension rail may be adjusted along the track rail and bolted. in adjusted position. hen the extension rail is thus in place, additional track ties 21, similar to the ties 11, are arranged therebeneath for supporting positioning the extension rails the outer end portionof the extension rail thereon, the extension rail being spiked or otherwise secured to such ties. As will, o f course, be understood, one of the extension rails with its bumper is used in with each rail of amine track so that'by forwardly to extend to the working face of the mine, as suggested in the drawing, a car upon the mine 10 track may be rolled onto the extension rails to closely approach said face in convenient p0- sltion for loading. At the sametime, the bumpers 16 will positively obviate the pos-' sibility of the car running off of the track.

As will now be readily appreciated in view :of the precedin description, when the bolts '20 are remove the extension rail ma be slid rearwardly over the track rail 10. onsequently, a mlne track equipped with a pair of my improved extension rails may be read ily shortened away from the working face of the mine and may as easily be again extended. I accordingly PIOVlClG' a particularly effective construction for the purpose set forth and, as will be noted, an extension rail which may be readily employed in connection with substantially any conventional type of mine track rail. Further, the extension rail may be used in conjunction with either a steel tie or a wooden tie.

Any difference in the gage of the track created by the use of the extension rail may be readily overcome by simply spreading sli htly the track rails 10.

aving thus described the invention, what is claimed as new is: c 1. An extension rail formed to slidably fit connection over a track rail for adjustment longitudinally thereon and provided with longitudinally spaced means whereby-the extension rail may be secured to the track rail in adjusted position longitudinally of the track rall. c

2. An extension rail formed to slidably fit over a track rail and provided at one end with a bumper engageable with the track rail for limiting the extension 'rail'in its movement inwardly 'overthe track rail.

'3. An extension rail formed to snugly receive a track rail therein slidably coacting end with a bumper, the extension rail being formed with openings for selectively receiving a fastening device whereby said rail may vbe secured in ad uste'd position longitudinally of a track rail; V i

4. In a device of thecharacter described, the combination of an extension rail formed to slidably fit over a track rail, and a bumper carried by the extension rail.

5. The combination with a track rail, of

with the track rail and provided at its outer c an extension rail slidably fitting over the track rail, and a bumper carried by the extension rail, the extension rail being adjustable longitudinally upon the track rail whereby to shift said bumper and adjustably locate the efi'ective end of the track rail.

6. A device of the character described including an extension railopen at its lower side and formed to snugly fit the ball and web of a track rail and resting against the base flange of thetrack rail.

In testimony whereof afiix my signature.

THOMAS QUINN. [1,. s] 

